The Shear Mode of Multi-Layer Graphene

P. H. Tan; W. P. Han; W. J. Zhao; Z. H. Wu; K. Chang; H. Wang; Y. F. Wang; N. Bonini; N. Marzari; G. Savini; A. Lombardo; A. C. Ferrari

doi:10.1038/nmat3245

The Shear Mode of Multi-Layer Graphene

Mesoscale and Nanoscale Physics 2015-05-28 v1 Materials Science

Authors: P. H. Tan , W. P. Han , W. J. Zhao , Z. H. Wu , K. Chang , H. Wang , Y. F. Wang , N. Bonini , N. Marzari , G. Savini , A. Lombardo , A. C. Ferrari

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Abstract

We uncover the interlayer shear mode of multi-layer graphene samples, ranging from bilayer-graphene (BLG) to bulk graphite, and show that the corresponding Raman peak measures the interlayer coupling. This peak scales from~43cm-1 in bulk graphite to~31cm-1 in BLG. Its low energy makes it a probe of near-Dirac point quasi-particles, with a Breit-Wigner-Fano lineshape due to resonance with electronic transitions. Similar shear modes are expected in all layered materials, providing a direct probe of interlayer interactions

Keywords

graphene bilayers raman spectroscopy graphene

Cite

@article{arxiv.1106.1146,
  title  = {The Shear Mode of Multi-Layer Graphene},
  author = {P. H. Tan and W. P. Han and W. J. Zhao and Z. H. Wu and K. Chang and H. Wang and Y. F. Wang and N. Bonini and N. Marzari and G. Savini and A. Lombardo and A. C. Ferrari},
  journal= {arXiv preprint arXiv:1106.1146},
  year   = {2015}
}

The Shear Mode of Multi-Layer Graphene

Abstract

Keywords

Cite

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